Inductoriusvi



No Model.) 3 Sheets-Sheet 1. G. J, VAN DEPOELE.

INDUGTORIUM.

N0LZ98A31. Patented'May 13, 1884.

N. PETERS. Phom-Lilho ner. Washinglnm ac.

(No'ModeL) 3 Sheets-Shet 2.

O. J. VAN DEPOELE.

INDUUTORIUM1 No. 298,431. Patented May 13, 1884.

fi0g g3A a Fa l I I I g I ll AZ 42 L O J dmuz A N PETERS, Phmo-Lainognphm, Nam DJ;

(No Model.)

3 SheetsSheet 3. O. J. VAN DEPOELE.

INDUGTORIUM.

Patented May 13, 1884.

UNITED STATES Fries.

PATENT INDUCTORIUM.

SPECIFICATION forming part of Letters Patent No. 298,431, dated May 1-3, 1884.

Application filed December 31, 1883. (No model.)

To all whom it may concern:

Be it known that I, CHARLES J VAN DE- POELE, a citizen of the United States. residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Inductoriums or Current- Generators, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to new and useful improvements made in electrical generators such as patented by me May 16, 1882, No. 257 ,990, for which application was filed April 8, 1881, and said improvements consist in the construction and winding of such machines, as herein fully described, reference being had to the annexed drawings, forming part of this specification.

Figure 1 shows a front view of the machine complete and ready for operation. Fig. 2 shows a plan view of the armature and the field magnet poles, the brushes, and commutator. Figs. 3 and 4 are diagrams of circuit combinations of the machine. Fig. 5 shows a vertical cut through the center of machine, the circuits of the same, and also the currentregulator R.

In the present drawings similar letters indicate similar parts.

A represents the armature. a and a are independent armature-coils. B is the field-magnet, provided with polar extensions N and S. O and 0 represent the helices of said fieldmagnet. D is the iron base supporting the machine. E and E are commutators independent of each other. E is connected to the coils a a, &c., and E is similarly connected to the coils a a, &c., of the armature A. F F F F are brushes bearing upon the commutators E and E. hit it h are brush-holders for the brushes F F F F. per conductors giving passage to the current to the inner and outer circuits of the machine. H is a cross-bar carrying the brush-holders h h h h. I is the shaft carrying the armature A. J is a bearing in which the shaft I is kept in place, and wherein it revolves. N and S are the north and south poles of the field-magnet B, between which the armature revolves. p,

10 p and p are the binding-posts to the ma chine. 11 and. a are the leads to the lamps.

0 c and e e are cop Having described the different parts of the machine or generator, I will now proceed to explain the same while in operation.

This machine is especially designed to operate incandescent lights with currents of high tension, or such as are used to run arc lamps,

and enables me to placea number of such generators or inductoriums in circuit with are lights. The current which is furnished in such circuit is used to rotate the armature of the inductorium, and said armature, as above stated, being wound with two independent sets of coils, one set is used to produce the motion between the poles of its field-magnet, while the other set is used to produce a current of lower tension with which to run incandescent lamps. I have found that in operating incandescent lamps in conjunction with are lights the results are not at all satisfactory as regards the steadiness of the lights, due to the constant variation of the resistance in the main or arc-lamp circuit, caused by the consumption of the carbons. So, in order to secure a steady current for the incandescent lamps, instead of using the direct current, I use the induced current produced in the set of armature-coils not 1n common with the prlmary set, which primary coils are directly in circuit with the arc lamps. The induced current is perfectly steady, while the primary or main current maybe fluctuating. To change the magnetic condition of a body of iron takes an appreciable time; hence the armature and field-magnet in this machine, which are under the influence of a fluctuating current, cannot vary their magnetism as fast as the fluctuations in the main current, which are instantaneous, so that the induced current set up in the coils intended for the incandescent lamps is not at all affected by the fluctuations of the main current, while variations of longer duration will be more perceptible, but will be gradual enough to allow for regulation of the variations which would take place, thus keeping the induced current steady at all times. Further, in order to make the inductorium more perfect, I have modified the circuits in the same so as to automatically regulate the current to the work.

As shown in Fig. 3, the primary or inducing current passes through the armature-' coils a a,

entering at F and leaving at F. This will cause the armature to revolve between the poles of the fieldmagnet B with a speed C0111- mensurate with the amount Ofcurrent flowing through said coils a a, &c. At the same time a current will be induced in the coils a a, &c., and collected by the brushes F and F As shown in Figs. 4 and 5, the field-magnetB is wound with two sets of coils, C and 0, each of which is connected with a separate armature, one iield-1nagnet operating both. Part of said current is sent through the field-coils O and C and the main portion to the lamps Z Z Z, &c. Thus the more lamps are switched in t to a certain point) the higher the degree of magnetism will be in the armature, and the stronger the current around the field-magnet, thus more and more opposing the motion of the armature, when a corresponding increase of current will be allowed to pass through the primary or armature coils a a, so as to automatically adjust the current produced to the work in circuit.

Fig. at shows another diagram of circuits around the armature and field-magnet cores. In this case the primary or the inducing current enters at F. The main portion passes through the armature-coils a a, 810., while asmaller portion passes through the field-magnet coils G and U, which are in a derivation from the coils a and a. the current leaving at F. The induced current produced in the coils a a, &c., is collected by the brushes F" and F, and from F sent through the field-coils C and C before reaching the lamp-circuit. By conductor 12 the current passes in multiple are through the lamps Z Z Z, &c., and by conductor or returns to brush F", thus completing the circuit. It will. be readily understood now that before any current is takenfrom the induced coils, under the action of the inducingcurrcnt, the armature and its coils, reacting upon the poles of the field-magnet B, would rotate with a constantly-increasing speed far above that which the machine is calculated to run. So, in order to avoid this, a suitable speedgovernor can be attached to the spindle of the armature and be arranged to work a currentregulator, diverting so much of the main current to the main circuit as is not used by the inductorium. An arrangement similar to that shown and described in Letters Patent No. 291,650, granted to me January 8, 1881-, would answer the present purpose. The moment some incandescent lamps are placed in circuit an induced current will flowin the coils of the armature set apart for this, and this current, being in opposite direction to the inducingcurrent, will have a ten dency to inagnetize the armature-core in opposite direction from the main or inducing current, thus causing a re duction in speed of the armature. This opposing three of the induced current will depend upon the amount of current used outside of the machine. Thus, to compensate for this, a proportionate amount of current will be sent through the indueing-helices of the armature and field-magnet, thus keeping up the induced current to its normal strength. The mode adopted by me is shown in Fig. 5. Still other combinations of circuits in the inductorium can be used-as, for instance, the main current can be passed through the inducingcoils of the armature and have the held-coils in a derivation from the armature, while the induced current can be collected directly from the armature without passing the current through the field-helices; but this is not so,

eliective; or the inducing-current can be made to flow through a derivation from the armature around the fields, and a similar derivation can be taken from the induced helices and sent around the field-magnet, as shown in Instead of winding theinducin g and induced coils side by side on one armature-core, two or more independent cores can be used and each wound with helices or coils, as may be required. One armature is set apart to run the others. The driving-armature may have its field-magnets in a derivation from the armature, or be connected in series with the same, while the armatures set apart for the induced current may excite their own field-magnets; or any other combination may be made, pro vided at all events that part of the induced current reacts upon the inducing field-magnets. As seen in Fig. 5, two armaturcs are mounted on one shalt. One receives the current from a source of electricity, and drives itself and at the same time the second armature, which latter gives an induced current to the incandescent lamps ZZZ, etc. As shown in Fig. 5, the current from the main line or source enters at I, and by brush F" passes to armature A through coils a, and by brush F passes out to main conductor 1 The coils U on the field-magnet B constitute a separate exciting-circuit therefor, and are in a derivation from the main line. being energized di rectly therefrom through conductors c 0. To the conductors I? and P, respectively, are connected suitable wires, 0 and 0. 0 is in contact with the bar I), while 0 is in contact with the lower ends of the resistances r 1' r, &c. The upper terminals of the resistances come out in contact with the contact-springs it, 850. Thus it will be seen that it the barb were pressed down upon the contacts t i z, &c., nearly all of the current would be diverted from the inducing-coils to the main line. In order to operate the contact-bar automatically, it is at one end provided with an iron core or plunger actuated by the solenoid m, which is connected between the two poles of the lampcircuitp and a. The induced current in armature A is collected by the, brushes F and F and by posts and p" is led to the lamps ZZZ, &c., by conduetorsp and a. Part of the current in this circuit is also sent around the fieldmagnet 13, the coils C constituting a second set, and being in a derivation from the second IIO . a current will be generated in A, so that in case of only a few lamps in circuit, as soon as more current is present in the lamp-circuit than is safe, the solenoid m will correspondingly draw in its core and lower the bar b upon the contacts 43 z t, 810., thus diverting part of the current from the inducing-coils to the main line or source. By properly adjusting,

the action of the bar b upon the contactsi t i, &c., any number of lights can be used up to full capacity, and at any time will retain their constancy and brilliancy.

\Vhat I claim as new, and desire to secure by Letters Patent, is-

1. An inductorium or current generator consisting of an armature and fieldmagnet provided with coils through which a proper current can be made to circulate, in order to produce the rotation of said armature, in combination with armature-coils wound upon the same core as the driving-armature coils, or wound upon independent armature-cores, but driven by the first, between the poles of a common field-magnet, the coils of which are in a derivation from the primary armature, substantially as and fonthe purpose described.

2. In an inductoriu'm or current-generator, an armature driven by a current furnished in an arc-light circuit or other source of electricity, in combination with armaturecoils wound upon one or more cores, mounted upon a shaft between the opposite poles of a field magnet,,a derivation from said secondary circuit being also wound upon said field-magnet, and connections whereby the rotation of the system will induce current in a portion thereof, said induced current being utilized partly torun incandescent lamps or do other work, and partly to intensify and steady the magnetic field and thereby to prevent the variations of the arc circuit afi'ecting the induced current, as described.

3. An inductorium or current generator having an armature and field-magnet provided with coils through which a proper current is made to circulate, so as to produce a rotary motion of said armature between its field-magnet poles, in combination with an armature or armatures driven by the first armature, in order to produce an induced current in the driven armatures, and proper connections by means of which a small portion of the induced current is diverted through the coils of the field-magnet common to the driving and driven armatures, the main part of the induced current being utilized outside of the machine to run incandescent lamps or to do other work, as may be desired.

4. In an inductor'ium or current-generator, a driving and a driven armature running between the poles of a field-magnet common to both armatures, the driving-armature and its field-magnets receiving the current from an arc-light circuit or other source of electricity, while the current generated in the driven armature is divided between the outside work and a set of independent coils around the common field-magnet in order to steady the induced current.

5. lhe combination, with an inductorium or tension-reducing device, as above described, of an arc-light circuit furnishing current to drive the armature or armatures in said in-' ductoriurn, and a regulator forming a derivation from the main circuit, but controlled by the current of the secondary circuit, and ar ranged to short-circuit the field-magnets to a greater or less degree, according to the requirements of the said secondary circuit, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES J. VAN DEPOELE.

Witnesses:

NORMAN T. GASSETTE, THEO. 1?. BAILEY. 

